Katsumi Yakabe

1918

• Keiei rīdā no Shōwa rōmushi
• Shin "Rengo" to roso no kaikaku
• Labor relations in Japan
• Labor relations in Japan
• Sengo rodo 50-nenshi
• Sengo rōdō 50-nenshi
• Teishō mondai to chingin kettei
• Zenminrōkyō no kenkyū